ReflectionClass::isInstance
(PHP 5, PHP 7)
ReflectionClass::isInstance — Checks class for instance
Description
public ReflectionClass::isInstance ( object $object ) : bool
Checks if an object is an instance of a class.
Parameters
-
object -
The object being compared to.
Return Values
Returns true on success or false on failure.
Examples
Example #1 ReflectionClass::isInstance() related examples
<?php
// Example usage
$class = new ReflectionClass('Foo');
if ($class->isInstance($arg)) {
echo "Yes";
}
// Equivalent to
if ($arg instanceof Foo) {
echo "Yes";
}
// Equivalent to
if (is_a($arg, 'Foo')) {
echo "Yes";
}
?> The above example will output something similar to:
Yes Yes Yes
See Also
- ReflectionClass::isInterface() - Checks if the class is an interface
- Type operators (instanceof)
- Object Interfaces
- is_a() - Checks if the object is of this class or has this class as one of its parents
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https://www.php.net/manual/en/reflectionclass.isinstance.php